* {
    padding: 0;
    margin: 0;
}
h4, p {
    text-align: center;
}
h4 {
    font-size: 0.4rem;
    margin: 1rem 0;
}

.title {
    width: 2rem;
    margin: 0 auto;
    color: #fff;
    font-size: 0.26rem;
    padding: 0.1rem 0;
    background-color: #ff7e28;
    border-radius: 0.2rem 0.2rem 0 0;
}


.section-one {
    width: 80%;
    margin: 0.5rem auto;
    p {
        font-size: 0.26rem;
        &:last-of-type {
            margin: 0 auto;
            // margin-top: 0.5rem;
            padding: 0.5rem;
            text-indent: 0.6rem;
            text-align: left;
            line-height: 0.5rem;
            color: #333;
            border-top: 1px solid #ff7e28;
        }
    }
}

.section-two {
    
    p {
        // font-size: 0.3rem;
    }
    > div {
        width: 80%;
        margin: 0 auto;
        border-top: 1px solid #ff7e28;
        .head-pic {
            width: 1.6rem;
            height: 1.6rem;
            margin: 0.4rem auto;
            border-radius: 50%;
            overflow: hidden;
            img {
                width: 100%;
            }
        }
        h4 {
            padding: 0;
            margin: 0;
            font-size: 0.26rem;
            font-weight: 500;
        }
        p {
            color: #666;
            font-size: 0.26rem;
            line-height: 0.5rem;
        }
    }
}

.section-three {
    width: 80%;
    margin: 0.5rem auto;
    video {
        width: 100%;
    }
}
.section-four {
    // margin-bottom: 0.5rem;
    > div {
        display: flex;
        padding: 0.2rem;
        font-size: 0.26rem;
        text-align: center;
        background-color: #fff;
        box-shadow: 0 0.01rem 0.04rem #ccc;
        span {
            flex: 1;
        }
    }
    ul {
        padding-top: 0.2rem;
        li {
            width: 90%;
            margin: 0 auto;
            padding: 0.1rem 0 0;
            display: flex;
            .course-pic {
                flex: 1;
                display: inline-block;
                width: 2.4rem;
                border-radius: 0.1rem;
                img {
                    width: 100%;
                    border-radius: 0.1rem;
                }
            }
            .text-info {
                flex: 2;
                font-size: 0.26rem;
                margin-left: 0.2rem;
                .top {
                    display: flex;
                    span {
                        flex: 1;
                        
                        &:first-of-type {
                            width: 3rem;
                            overflow: hidden;
                            text-overflow:ellipsis;
                            white-space: nowrap;
                        }
                        &:last-of-type {
                            display: inline-block;
                            text-align: right;
                            color: #444;
                            img {
                                width: 0.4rem;
                                vertical-align: -22%;
                            }
                        }
                    }
                }
                .bottom {
                    margin-top: 0.36rem;
                    color: #666;
                }
            }
        }
    }
}